Each numbered point is a stop: a run of days spent within about ten kilometres. The route between stops is drawn straight; the real course went by sea, by road or on foot. Hollow-looking stops are placed at the centre of an island whose labels carry no coordinates.
Koloa, Wahiawa, Kauaʻi 25 April 1964 4 specimens, 4 names · placed by island
Clermontia fauriei 1 , Ilex anomala 1 , Laurencia dendroidea 1
The specimens from 25 Apr → Mokulua (North) Islet, Oʻahu 1 May 1964 14 specimens, 9 names · placed by island
Sida fallax 4 , Chenopodium oahuense 3 , Jacquemontia sandwicensis 1
The specimens from 1 May → Manana Island, Oʻahu 2 May 1964 10 specimens, 6 names
Atriplex semibaccata 2 , Boerhavia repens 2 , Digitaria insularis 2
The specimens from 2 May → Mokapu Point, Oʻahu 6 May 1964 5 specimens, 5 names · placed by island
Chloris barbata 1 , Leucaena leucocephala 1 , Prosopis pallida 1
The specimens from 6 May → Mokuauia, Oʻahu 16 May 1964 9 specimens, 9 names · placed by island
Casuarina equisetifolia 1 , Fimbristylis cymosa 1 , Jacquemontia sandwicensis 1
The specimens from 16 May → Eastern Island Flat area at W/end of E-W runway, Midway Atoll 23 May 1964 2 specimens, 2 names · placed by island
Cenchrus echinatus 1 , Sonchus oleraceus 1
The specimens from 23 May → Eastern Island. Middle S side of E-W runway, Midway Atoll 25 May 1964 9 specimens, 7 names · placed by island
Boerhavia repens 2 , Polypogon monspeliensis 2 , Lobularia maritima 1
The specimens from 25 May → Meeden Island, Malden 1 June 1964 2 specimens, 2 names
Gelidium 1 , Scutellinia cubensis 1
The specimens from 1 Jun → Cooper. Adjacent to W end of runway, Palmyra Atoll 5 June 1964 3 specimens, 2 names · placed by island
Sporobolus fertilis 2 , Pluchea odorata 1
The specimens from 5 Jun → Cooper Island, Palmyra Atoll 6–7 June 1964 · 2 days 25 specimens, 16 names · placed by island
Pluchea fosbergii 3 , Synedrella nodiflora 3 , Pluchea indica 2
The specimens from 6 Jun–7 Jun → Washington Island, Washington (=Teraina) 9 June 1964 18 specimens, 14 names
Spermacoce remota 2 , Heterodermia speciosa 2 , Lepturus repens 2
The specimens from 9 Jun → Teraina (=Washington), Washington (=Teraina) 10 June 1964 10 specimens, 7 names
Pipturus hubertii 3 , Laportea ruderalis 2 , Fimbristylis cymosa 1
The specimens from 10 Jun → Near boat mooring; east side of lagoon, Washington (=Teraina) 11 June 1964 3 specimens, 3 names
Fimbristylis cymosa 1 , Lepturus repens 1 , Ludwigia erecta 1
The specimens from 11 Jun → Motu Tabu, Kiritimati (=Christmas Island) 14 June 1964 7 specimens, 4 names · placed by island
Kadua romanzoffiensis 2 , Lepturus repens 2 , Sida fallax 2
The specimens from 14 Jun → Motu Upua, Kiritimati (=Christmas Island) 15 June 1964 3 specimens, 3 names · placed by island
Boerhavia 1 , Lepturus repens 1 , Sida fallax 1
The specimens from 15 Jun → 1 mi E of airfield, Kiritimati (=Christmas Island) 16 June 1964 7 specimens, 4 names · placed by island
Boerhavia 2 , Digitaria stenotaphrodes 2 , Pluchea odorata 2
The specimens from 16 Jun → two ponds at SE end of Island, Kiritimati (=Christmas Island) 19 June 1964 1 specimens, 1 name · placed by island
Enteromorpha 1
The specimens from 19 Jun → On the West end, Malden 22 June 1964 2 specimens, 2 names
Digitaria stenotaphrodes 1 , Lepturus repens 1
The specimens from 22 Jun → North side of island, Malden 23 June 1964 1 specimens, 1 name
Bidens pilosa 1
The specimens from 23 Jun → 1/2 mile from the W beach, Malden 24 June 1964 1 specimens, 1 name
Ipomoea violacea 1
The specimens from 24 Jun → Trig Island, French Frigate Shoals 27 June 1964 1 specimens, 1 name · placed by island
Laurencia dendroidea 1
The specimens from 27 Jun → Howland Island 1 July 1964 1 specimens, 1 name · placed by island
Dictyosphaeria cavernosa 1
The specimens from 1 Jul → Lesoto Ridge, below Matafao, Tutuila 2 July 1964 11 specimens, 8 names · placed by island
Angiopteris evecta 3 , Myristica inutilis 2 , Crossostylis biflora 1
The specimens from 2 Jul → Third ridge west of Pago Pago harbor, Tutuila 3 July 1964 1 specimens, 1 name · placed by island
Sticta 1
The specimens from 3 Jul → Enderbury Island, Hull (=Orona) 8 July 1964 22 specimens, 18 names
Boerhavia 4 , Sida fallax 2 , Caulerpa serrulata 1
The specimens from 8 Jul → Mid-N side of island, Hull (=Orona) 9 July 1964 6 specimens, 3 names
Lepturus repens 3 , Boerhavia 2 , Sida fallax 1
The specimens from 9 Jul → N end of the island, Phoenix Island 10 July 1964 1 specimens, 1 name
Sida fallax 1
The specimens from 10 Jul → Phoenix Island, Phoenix (=Rawaki) 11 July 1964 8 specimens, 5 names
Boerhavia 2 , Lepturus repens 2 , Sida fallax 2
The specimens from 11 Jul → on the S end, Phoenix (=Rawaki) 12 July 1964 1 specimens, 1 name
Boerhavia 1
The specimens from 12 Jul → S end, near lagoon, Phoenix (=Rawaki) 13 July 1964 3 specimens, 2 names
Sida fallax 2 , Lepturus repens 1
The specimens from 13 Jul → Islet in lagoon (dry), Enderbury Island 15 July 1964 11 specimens, 5 names
Boerhavia 4 , Lepturus repens 3 , Sida fallax 2
The specimens from 15 Jul → West face of gravel pile among guano works, north middle portion of island, Enderbury Island 16 July 1964 10 specimens, 5 names
Laportea ruderalis 4 , Boerhavia 2 , Triumfetta procumbens 2
The specimens from 16 Jul → Enderbury Island 17 July 1964 4 specimens, 3 names
Boerhavia 2 , Caulerpa serrulata 1 , Caulerpa webbiana 1
The specimens from 17 Jul → N side of the island, McKean 18 July 1964 10 specimens, 5 names
Boerhavia 3 , Lepturus repens 3 , Sida fallax 2
The specimens from 18 Jul → N end of the lagoon, McKean 19 July 1964 5 specimens, 5 names
Boerhavia 1 , Digitaria stenotaphrodes 1 , Lepturus repens 1
The specimens from 19 Jul → Baker Island 21 July 1964 20 specimens, 12 names · placed by island
Boerhavia 6 , Lepturus repens 2 , Jania pacifica 2
The specimens from 21 Jul → Howland Island; mid-east portion, E of Earhart Light 22 July 1964 8 specimens, 5 names · placed by island
Boerhavia 3 , Lepturus repens 2 , Coccoloba uvifera 1
The specimens from 22 Jul → Howland Island 23 July 1964 2 specimens, 2 names · placed by island
Boerhavia 1 , Caulerpa serrulata 1
The specimens from 23 Jul → Baker Island; NW part, Howland Island 24 July 1964 3 specimens, 2 names · placed by island
Sida fallax 2 , Lepturus repens 1
The specimens from 24 Jul →